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Manual Yamaha XS250

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  • Yamaha XS250 - page 1

    POWER AMPLIFIER XS350 XS250 Owner’s Manual E POWER POWER AMPLIFIER XS SERIES POWER SIGNAL CLIP SIGNAL CLIP PROTECTION CH A CH B ON OFF 350 ...

  • Yamaha XS250 - page 2

    2 Introduction Thank you for purchasing a Yamaha XS350, XS250 series power amplifier. This series of audio amps was developed from Yamaha's wealth of experience in building PA equipment and its tradition of careful attention to every detail of circuit design. These amps feature high power and superb quality together with superior reliability a ...

  • Yamaha XS250 - page 3

    3 P recautions Contents Controls and Functions ............................................. 4 Front Panel ........................................................... 4 Rear Panel ........................................................... 5 Speaker Impedance ............................................. 7 Caution for Speaker Connection ........... ...

  • Yamaha XS250 - page 4

    4 C ontrols and F unctions ■ F r ont P anel PO WER PO WER SIGNAL CLIP SIGNAL CLIP PRO TECTION CH A CH B ON OFF 3 4 2 1 1 POWER switch and indicator This is the main POWER switch. Press to power ON the amplifier. Press again to power OFF. The POWER indicator lights up when the amplifier is powered ON. 2 SIGNAL indicators These green LED indicators ...

  • Yamaha XS250 - page 5

    5 ■ Rear P anel B-2 CHANNEL A-2 8-16 Ω (BRIDGE) (–) (+) 4-8 Ω /CHANNEL (STEREO) B-1 CHANNEL A-1 8-16 Ω (BRIDGE) (–) – – + + (+) 4-8 Ω /CHANNEL (STEREO) (BRIDGE) (P ARALLEL) (BRIDGE) (P ARALLEL) FIL TER CHANNEL B CHANNEL A FREQ. FREQ. INPUT CHANNEL B CHANNEL A INPUT CHANNEL B CHANNEL A SPEAKERS G G MODE CHANNEL B CHANNEL A STEREO P ...

  • Yamaha XS250 - page 6

    6 4 SPEAKERS terminals Two types of speaker output terminals: Binding post (Channel A-1, B-1) and barrier strip (Channel A-2, B-2) are available. These parallel wirings are internally connected and output identical signals simultaneously. The output impedance varies depending on whether you use either or both types of SPEAKERS terminals. (Refer to ...

  • Yamaha XS250 - page 7

    7 ■ Speaker Impedance In STEREO and PARALLEL modes, the minimum load (i.e., speaker) impedance is 4 Ω . In BRIDGE mode it is 8 Ω . Make sure that the impedance does not fall below this specified impedance. Using the barrier strip and binding posts simultanuously STEREO mode connections: MODE STEREO PARALLEL BRIDGE Set to STEREO PARALLEL mode ...

  • Yamaha XS250 - page 8

    8 Using the barrier strip or terminal posts STEREO mode connections: MODE STEREO PARALLEL BRIDGE Set to STEREO PARALLEL mode connections: MODE STEREO P ARALLEL BRIDGE Set to PARALLEL – – + + SPEAKERS • Using the barrier strip – SPEAKERS – – + + • Using the terminal posts Not used Not used – – + + – + + ++ –– Each speaker min ...

  • Yamaha XS250 - page 9

    9 Caution for Speaker Connection 1. Turn off the POWER switch. 2. Remove the cover attachment screws and remove the protective cover from the speaker terminals. Screw 3. For Barrier strip: After removing approx. 15 mm of insulation from the ends of the speaker cables, bind the bare ends of the speaker wires in the corresponding speaker terminals an ...

  • Yamaha XS250 - page 10

    10 Rack Mounting ■ Mounting in an EIA standar d rac k If multiple high-power amp units are mounted in a rack with poor ventilation, the heat from the amps will cause the interior of the amp to become very hot, causing the performance of the amps to be impaired. In particular, when mounting in a rack whose back can not be left open, mount accordin ...

  • Yamaha XS250 - page 11

    11 ■ P ortable Rack Mounting This unit uses a forced cooling system in which air comes in through the front opening and goes out from the sides and rear. If you mount a single unit on a portable rack, be sure to maintain vent openings on the rear and sides. FILTER CHANNEL B CHANNEL A INPUT CHANNEL B CHANNEL A INPUT CHANNEL B CHANNEL A SPEAKERS CH ...

  • Yamaha XS250 - page 12

    12 Specifications ■ Gener al Specifications XS250 XS350 Power Output Level (Rated Power) 8 Ω /STEREO 170 W + 170 W 230 W + 230 W 20 Hz~20 kHz 4 Ω /STEREO 250 W + 250 W 350 W + 350 W THD+N= 0.1% 8 Ω /BRIDGE 500 W 700 W 1 kHz 8 Ω /STEREO 185 W + 185 W 250 W + 250 W THD+N= 0.1% 4 Ω /STEREO 280 W + 280 W 400 W + 400 W 8 Ω /BRIDGE 560 W 80 ...

  • Yamaha XS250 - page 13

    13 ■ Block Diagr am Protector CLIP CLIP MODE OFF LOW CUT SUB WOOFER OFF LOW CUT (P ARALLEL) (BRIDGE) (P ARALLEL) (BRIDGE) INPUT INPUT CHANNEL B CHANNEL A CHANNEL B CHANNEL A + – G G – + INPUT B-2 A-2 CHANNEL – + + – + – – + – + + – B-1 A-1 CHANNEL SPEAKERS SIGNAL SIGNAL PRO TECTION INV CHANNEL A CHANNEL B SUB WOOFER HPF LPF FREQ F ...

  • Yamaha XS250 - page 14

    14 T roubleshooting The following table lists the main causes of abnormal operation and the corrective measures required, as well as the protective circuit operation in each c a se. Protection Circuit Remedy Probable Cause Indicator CLIP indicator lights. PROTECTION indicator lights. There is a short at a speaker terminal, amplifier terminal, or wi ...

  • Yamaha XS250 - page 15

    YAMAHA CORPORATION V352950 R1 1 IP 16 Pro Audio Division, #18/3 P .O. Box 3, Hamamatsu, 430-8651, J apan NP Printed in Taiwan ...

Manufacturer Yamaha Category Stereo Amplifier

Documents that we receive from a manufacturer of a Yamaha XS250 can be divided into several groups. They are, among others:
- Yamaha technical drawings
- XS250 manuals
- Yamaha product data sheets
- information booklets
- or energy labels Yamaha XS250
All of them are important, but the most important information from the point of view of use of the device are in the user manual Yamaha XS250.

A group of documents referred to as user manuals is also divided into more specific types, such as: Installation manuals Yamaha XS250, service manual, brief instructions and user manuals Yamaha XS250. Depending on your needs, you should look for the document you need. In our website you can view the most popular manual of the product Yamaha XS250.

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A complete manual for the device Yamaha XS250, how should it look like?
A manual, also referred to as a user manual, or simply "instructions" is a technical document designed to assist in the use Yamaha XS250 by users. Manuals are usually written by a technical writer, but in a language understandable to all users of Yamaha XS250.

A complete Yamaha manual, should contain several basic components. Some of them are less important, such as: cover / title page or copyright page. However, the remaining part should provide us with information that is important from the point of view of the user.

1. Preface and tips on how to use the manual Yamaha XS250 - At the beginning of each manual we should find clues about how to use the guidelines. It should include information about the location of the Contents of the Yamaha XS250, FAQ or common problems, i.e. places that are most often searched by users in each manual
2. Contents - index of all tips concerning the Yamaha XS250, that we can find in the current document
3. Tips how to use the basic functions of the device Yamaha XS250 - which should help us in our first steps of using Yamaha XS250
4. Troubleshooting - systematic sequence of activities that will help us diagnose and subsequently solve the most important problems with Yamaha XS250
5. FAQ - Frequently Asked Questions
6. Contact detailsInformation about where to look for contact to the manufacturer/service of Yamaha XS250 in a specific country, if it was not possible to solve the problem on our own.

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